我绑定请求时遇到问题，因为param很多，所以我使用struct contains param。

package api
import (
    "github.com/labstack/echo/v4"
    "net/http"
    "trains-api/domain/models"
    "trains-api/domain/services"
)

type reqCreate struct {
    RequestNotifi  models.ResquestCreateNotifi  
}
func CreateNotification (c echo.Context) error {
    req := reqCreate{}

    if err := c.Bind(req); err != nil {
        return c.JSON(http.StatusnotFound,err)
    }
}

package models
type RequestCreateNotifi struct {
Name_param1     string    `db:"Name_param1"`
Name_param2     string    `db:"Name_param2"`
....
Name_param_n    string    `db:"Name_param n"`
}

if err := c.Bind(req); err != nil处的错误

r = {interface {} | string } "reflect: Elem of invalid type"